If you are running your master on a single core, it might be an issue of Starvation. assuming you are running it locally, try setting master to local[2] or higher.
Check the first example at https://spark.apache.org/docs/latest/streaming-programming-guide.html - Hareesh On 3 May 2016 at 12:35, Shams ul Haque <sham...@cashcare.in> wrote: > Hi all, > > I am facing strange issue when running Spark Streaming app. > > What i was doing is, When i submit my app by *spark-submit *it works fine > and also visible in Spark UI. But it doesn't process any data coming from > kafka. And when i kill that app by pressing Ctrl + C on terminal, then it > start processing all data received from Kafka and then get shutdown. > > I am trying to figure out why is this happening. Please help me if you > know anything. > > Thanks and regards > Shams ul Haque >